Atmosphere
The _______________ is the collection of gases that layer the Earth.
Carbon is in the _________ as a gas called carbon dioxide (CO₂).
Air
Where humans live and weather occurs.
Troposphere.
The atmosphere has ________________ layers.
Four
Plants take in carbon dioxide from the air during a process called _____________________. They use sunlight to turn it into food and grow.
Photosynthesis
The layer that protects us from sunlight.
Stratosphere
The atmosphere is important because it allows us to have _______________ to breathe on Earth.
Oxygen
Animals and humans eat plants (or animals that ate plants), getting carbon into their ____________.
Bodies
Layer meteors burn up in.
Mesosphere
The hydrosphere contains all ______ whereas the atmosphere contains all _______.
Water; Gas
Living things ____________ out carbon dioxide. When plants and animals die and ___________________, carbon goes back into the soil and air.
Breathe; Decompose
The hottest layer. Where auroras occur-.
Thermosphere
The geosphere contains all _______.
Some carbon gets trapped underground for millions of years and turns into __________________ fuels like coal, oil, and gas.
Fossil
The highest layer from Earth (not fully discussed in class)
Exosphere